Pick-up construction



Nov. 3, 1931. H. THoEN PICK-UP CONSTRUCTION Filed Feb. 3, 1930 A TTORNE YS.

Patented Nov. 3, 1931 UNITED i STATESPATENT Q FFfICE eo., or sANLEANn-no, oALrFonNIAjA sonreir-Arron or CALIFORNIA Prox-UP CoNsrRUc'rIoN y Applicationl led February 3', 1930. Serial No..425,442.

lily invention relates to harvesting machinery and is particularly concerned with y'machinery adapted to lbe' propelled over ra f 5j in windrows or in'bundles, for picking up theVA cutgrain and transferring it as desired, cusfield in which cut grain is lying on the ground tomarily to a threshing mechanism. Such de- K vices 'are 'usually termed pick-ups in the art and itk isin connection with them that Ishall describe my invention although it is capable" .of use ina wide'variety of differentenviron-i ments.

y ,y j yPick-ups of the character referred to usually comprise a framework having a conveyor yon which is mounted a plurality of spikes or tangs which are suitably propelled to engage y grainlying on the field, ordinarily in windrows. rlhe tangs are usually arranged inthe" ,Y direction of motion of the pick-up in ad-V 2o vancing into the grain and carry the picked up grain in an opposite direction to a con-V veyor or .draper for carrying the grain to.4

the separating mechanism. f

It is an object of my invention to provide a pick-up construction in which the tangsare I more than usuallyefective toengagegrain lyingonthe ground in windrows.

vide a pick-up construction in which the tangs vare less liable to injury by shock.

Another object of my inventionfis to pro-V The foregoing andfother ob'ects are at tained in the embodiment of the invention shown in the drawings, in which Fig. 1 is a plan of a pickeup construction in accordance with myinvention.

Fig. 2 is a cross section on the line 2--2 of Fig. 1. f

Fig is a cross' section on the line 3-3 of Fig. 2.

a pick-up frame on which movable tangs are j, mounted, the tangs being arranged to project f in -adirection having a component generally n pick-up frame.

In its preferred form, the pick-up construction of my invention preferably includes transverse of the direction of advance of the In the form of my invention disclosed in the drawings,v there is provided a separator unit 6 of a combined harvester which is mounted on an aX1e7 supported by wheels .8

closed path of the chains 2 6 and 27. l

kvand 9. Fastened to the axle is a framework 11 carrying the customary draper 12 which extends from the outboard end of the 'framework adjacent'the wheel 9 to the feeder house 13 of the separator. 'The draper is driven in la suitable fasliion'with its upper run traveling in the direction of arrow lllY appearinglin Fig. 1. --The pick-up mechanism is driven in therwell-lmownrmanner from 'the' source of vpower'on the machine which operates the threshing and separating mechanisms.` 1f

Secured to the framework'll is apick-up frame 16 which supports end boards 17 and 18 carrying Vcam tracks 19. Journalled inthe end boards are shafts. 21 and 22'each of which is provided with a pair of sprockets 23 and 24 for receiving a'pair 'of chains 26and 27. Mounted in the parallel Vchains'26` and 27 is a plurality of tang'bars 28 Awhich are freely rotatable except for .the constraintaiforded by crank arms 29 affixed vto 'the' opposite ends of each of the tang bars and running in the 'camtracks y19. The shape of the cam tracks is such thaty the tang bars are given apredeterminedfamount ofy angular movement fabout their own axes as thevftravel in the .l Oii'each ofthe tang bars aresecured wire springsv 31"which are preferably reversely coiled about the'bars and held rsecurelyby central clips 32,. The extremities ofjveach ofthese springs extend, when viewed in Fig. 2, tangentially fromy the tang bars. -The projecting portions y33 'ordinarily are disposed in the direction of advance of thefpick-up" unit but, in accordance with' my invention, I preferably incline the tang bars in such a manner that they have a directional component in the general direction of advancekv of the draper 12, which is indicated by thek LownLLn. THOEN, or sroox'roiv, oALIFoRNILAssIGNoR Aro CATERPILLAR y'raAc'roR r fr V y '1,830,299

vas rocks or stumps. They are capable of marked deflectiongwhen so striking and of approaching the tang, bars quite closely, and

due to kthis resiliency are not vdamaged by -such contacts. In addition, the inclination of the tangs in the direction of motion of the -draper facilitates the discharge thereto of the grain which has been engaged and picked up,

It is to vbe understood that I do not limit v myselfto the formv ofthe pick-'up construetion shown' and described herein, as the in vention, as set forth in the following claims `may be embodied in a plurality ofvforms'.

I claim l; A pick-up construction comprising `-pickup yfra1ne,'a draper supported on saidframe formovement transversely thereof'in r one direction, a tang mounting supported on said frame for movement toward said draper,

draper.V

vand tangs projecting from said mounting and bent in the directionof movement of said i 2. A pick-up construction "comprisingr a pick-np frame adapted to progress'over the e ground `in a predetermined directionn a'itangmounting` on said'frame disposed-With itsaxis4 substantially. parallel with the ground and transversely of said predetermined ydirection, and a tang on said mounting'y disposed` Y f -v at an acute angleY to the axis of said mount-- ing: f

- 3. A Vpick-up construction comprisingN a mounting b ar, and a tangzon said bar lying in a plane tangent to said bar rand disposed with the axis of said tang at an acute angle` to the axis of said bar'.

4. A pick-up construction comprising @amounting bar,and a Wire mountedon said y bar with its extremities projeetingat an acute 5.A pick-up construction comprising a 'mounting-bar, a-*Wire having its mid-portion f coiledaboutsaid bar and its extremities `pro-l v jecting atan acute angle tothe .axis of said barV to form'tangs, and means for securing said Wire to said-bar. f f' l KVInftestimonyv'vhereof, I have hereuntoset my hand. f

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